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What is intelligent pigging in pipeline?
“Intelligent Pigging” also referred to as “Smart Pigging” is an advanced robotic technique that propels a purpose-built pipeline integrity gauge (PIG) unit fitted with a variety of probes and sensors through a pipeline to detect and measure corrosion, metal loss, cracks, dents, deformations, etc.
What is ILI pigging?
One of the most effective and comprehensive methods involves pipeline pigging (or ILI) – a preventative maintenance operation for identifying pitting corrosion and other defects in your pipelines. Pipeline pigging refers to the process of sending a device known as a pig, or ILI tool, through a pipeline.
What is pig trap in pipeline?
Pipelines are constructed to feature launching and receiving stations designed specifically to insert and remove pipeline pigs. A pig is then inserted into the launching station, also known as the “pig launcher” or “pig trap”, and pushed through the pipe using pressure from the well.
Why pigging is done?
Pigging refers to a technique of cleaning or inspection of pipeline through recovering trapped products in the pipelines without stopping operation. It is done through inserting a device known as pigging pigs into the process pipelines.
What are pipeline pigs used for?
A pipeline pig is a maintenance tool used for a wide range of pipeline maintenance applications. Some of these include drying, cleaning, batching, product removal, liquid displacement, and other more complex pipeline pigging solutions.
How many types of pigs are there in the pipeline?
Pipeline Pig Types Three categories of pigs are used to accomplish the above-mentioned tasks. They are: Utility Pigs, are used to perform functions such as cleaning, separating, or dewatering. In-Line Inspection Pigs: They provide information on the line condition along with the extent and location of any problems.
How does pigging a pipeline work?
Pigs act like a pipe-cleaning squeegee, but instead of being forced through the pipe on a wire, the pipe-cleaning action uses forced air, nitrogen, or water that pushes the projectile and product through the piping.
What is a foam pig?
Foam pigs are a versatile type of pipeline cleaning device. They are used for drying, cleaning, batching, and product removal operations. A few of the industries utilizing foam pigs are the oil and gas, municipality, food and beverage, mining, chemical and petrochemical, cosmetic, and pharmaceutical industries.
What are the components of a pipeline pigging system?
Key Components for your Pigging System
- Standard Isolation Valves. Standard isolation valves are used to isolate the pigged sections from the non-pigged sections of the non-pigged sections of the transfer line.
- Utility Line Isolation Valves.
- Air Regulators and Drying Filters.
How are pipelines cleaned?
Utility pigs are used in conventional pipe cleaning operations to achieve mechanical clearance of solid contaminants, water vapor, and debris. Utility pigs can also be used in pipeline proving operations to determine the nature of buildup within the affected pipelines and guide the approach to clearance.
What is dew point in pipeline drying?
Natural gas pipelines are usually dried to a lesser extent to prevent the formation of hydrates. It is not unusual for a petrochemical line to be dried to a dew point of –80°F. A typical dew point for a propylene pipeline will be –70°F. A carbon dioxide pipeline might be typically dried to a –40°F dew point.
Why is pigging necessary?
Pigging is an integral part of pipeline construction. Usually, the first application is when the contractor runs a cleaning pig to clean short sections of pipe to remove dirt and other construction debris that may be inside the pipe as the pipeline is being assembled.
What is a pigging operation?
In pipelines, pigging refers to various maintenance operations of cleaning and inspecting pipelines with the help of a device known as a pig. Pigging is performed with the flow of the materials within the pipeline. This operation is done by inserting the pig into the pipeline from the source to the endpoint.
What is pipeline pigging and how does it work?
Pigging is a process that effectively cleans and removes debris on the inside of the pipe using a cylindrical device that is propelled through the pipeline by the normal water flow. Pigging is efficient and excellent for long piping runs and large diameter pipelines.
What to consider before pipeline pigging?
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What the Heck is pipe pigging?
What is Pipeline Pigging? Pipeline Pigging refers to the practice of using devices or implements known as ‘pigs’ to perform various cleaning, clearing, maintenance, inspection, dimensioning, process and pipeline testing operations on new and existing pipelines.
How do pipeline pigs work?
Cleaning and Maintenance. When a pig is launched through a pipeline,it scrapes away buildup and debris from the pipes.